Definition of guarana
: a dried paste that is made from the seeds of a South American climbing shrub (Paullinia cupana) of the soapberry family, that contains caffeine and tannin, and that is used as a stimulant; also : this plant
Recent Examples of guarana from the Web
Information based on scientific testing should also be made available on the effects of energy drink additives, such as guarana and taurine, that can increase the potency and increase the effects of caffeine.
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Origin and Etymology of guarana
Portuguese guaraná, from Nhengatu (Tupi-based lingua franca of Amazonia), from Sateré-Mawé (Tupian language of the middle Amazon River basin) warana
First Known Use: 1838
Medical Definition of guarana
: a dried paste made from the seeds of a Brazilian climbing shrub (Paullinia cupana) containing tannin and caffeine and used in making an astringent drink
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